Grain-separator.



C. SBAGREN.

GRAIN SEPARATOR.

APPLIoATIoN FILED JAN.7.1914.

1 ,1 1 2,848, Patented Oct. 6, 1914.

Snom/tofs l Mw @my @LW/meme@ 1j Grimm,

THE NORRIS PEYES C0.. PHOTO-LITHO.. WASHINGTON.

To all whom t may concern:

UNITEDSTA Lineas.

PATENT o TES GRArN-SEPARATOB. a

' Be it known that I, CHARLES SEAGREN, a citizen of the United States,residing `at Holdrege, in the county of `Harlarrand State of Nebraska,haveinventedcertain newand useful Improvements in Grain-Separatore; Vand Ido hereby declare the `following to be a full, clear, "and exactdescription ofthe invention, such as will enable others skilled in theart to which lit appertains tormake and use the same.`

' j This `invention relates to separators for grain providedwwithshaking` straw racks and grain bottoms;` and tconsists in im` provedmeans for separating `the chaff from thegrain as hereinafter fully`described and iclaimed.

In the drawings, Figureyl is a longitudinal `section through portions ofa grain separatoraprovided with improvements according to thisinvention. Eig. 2 is a crosssection, taken on the line --m in Fig. 1.

`The casing 2 of the separator has a thresh-`` ing cylinder 3 and aconcave 4arranged inside itsinlet end portion; anda frontstraw rack 5and a rear straw rack 6 are arranged in the middle and rear end`portionsofthe casing, and are supported by `pivoted links 7 The strawracks are reciprocated by means `threshing cylinder. i

of a crankshaft 8 which is `journaled between them; and all the abovementioned parts are of any approved construction.

A front grainbottom 10 and a rear grain bottom 12 are provided. `Thefront grain botto-m is arranged under the concave and end and to one ofthecranks of the crank-` shaft 8 at the other end. The rear grain bottom12`is arranged under `the adjacent end portions of the front and rearstraw racks, and in a position inclined upwardly and rearwardly toaslight extent only, so that it is substantially horizontal. The reargrain bottom 12 has two long side arms 18` which are pivoted by pins 19to the front end portion of the front grain bottom, so

a specneatioa pf Letters Patent.I f a Patented Application led January?,1914. Serial No. 810,850;`

that `a shaking motionis imparted tothe i cHARLiissEAGREnoFnornREGnNEBnAsKA,

ceac, 19.14;, `f

rear grain jbottomd Thesurfacesofboth grain bottoms are preferably4serrated sof that the grainis cansedtofmove rearwardly over them, andtherear grain bottom has `a chailingisieve orl screen 2OV at` its rearendsf i The rear endportio'n ofthe reargrain bot-W tom 12 ispivoted tothe casing by two simi- Vlar links 21 'whiclrare considerably longerthan the links 14 so that ther-ear part of the rear grain bottomhascomparatively little `tossingmotion in proportionto its longitndinalorshaking` movement..` Aspace "ork i passage 24 is providedbetweentheadjacent` ends of thetwo-grain "bottoms, and 25fis `front fan lwhichdeliversa current ofil air* against` the material which` falls"` from`the M.

rearend of the front grain bottom onto the front end portions of therear grain bottom; A regulatinglboard `26 `is pivoted yin. the deliverypassage of the fany 25 `to `vary the an#` I gle of the blast anditsstrength; e 4

i A return bottom'28 is arranged under the rearvstraw `rack and therearcnd portion of the front straw' rack Thisjreturn bottom*` isinclined downwardly and forwardly, and

its front end is arranged adjacent to.andiam` little above the level ofthe blast `passage a 24 of the front fan 25. The return bottom 28 ispivoted to the casing by two pairs of `similar links 29, so that itoscillates indel pendently of the straw racks, and hasa more gentlemotion lmparted to it. One pair of links 29 has extension arms 3Q whichare operatively connected with `the rear grain bottom 12 by pins 31, andthe return bottom is `shaken in the opposite direction from a the reargrain bottom. a

A rear fan 32 is arranged under the rear grain bottom, and it delivers a`blast of air through the chatter screen or sieve 20. The

curved arrows in the drawing show the direction of motion of the variousrevoluble parts, and any approved driving mechanism is provided forrevolving them.

Much of the chail'l is blown out of the grain by the front fan, and aconsiderable portion of the chaff is carried out at the rear end of themachine without falling on the rear grain bottom. The grain and othermaterial which falls from the two straw racks onto the return bottom isalsowinnowed bythe front fan to some extent, and the partially winnowedgrain then passes rearwardly over the rear grain bottom.` The complete.removal of the chaff` fromthe grain iseii'ected,

. noweol grain falls onto a snitafble gather- Lbottomsgfaehainggsereemseoured-zto thefreer i 5 endjof -th1e reargrain'bottomyareturn bottoms 'ration of the Chart' from the-fgfrwin..a

- withI front-andl'rear str-aw roksgof afffront by the rear fan,and-"the 'com'plet'e'ly winboard 36 from the rear/fendfthef'Chng screen.When a separator is constructed. esl hereinbefore described, itsmanufact're simplified and rendered less expensive, and-` it isV fomdftd`efectra Every satisfactory; 'sepa'`- What I claim is: w l." aegrain@separater;y the-combinationg with frontf ends rear vfstrztwfreeks,` foi?A im.- perforate..front' ande. reargrztiIr-bottomsrkpivotally Foonneoted together and pivotally K 1 suppor-tecl'-.under:the4said raok'syfa ohwfing;-` screen securedj toi the Aretiren@ off-theIrevr grain bottomr .ai yreturn -bottom i extending under the-rear .strawK .mok` u1-1ol\.=luidervv the rear. ypart of the front: Straw? rack de1livering. the flrl-a-'teriala which falls yonl fit bnto the tiInperor-atel .front nend; portion e Fo the rear grain bottom, and-meztnsr or delivering: an. air blast between; the two-fb ottoms; and*through` Itheohaiing-soreenfj 2. .In a grainy separator,V the;lcombintion grain bottomgr Lan,impertonate-reergxstriiri bottoms.arrangedl behind-- 'the -froni? gltinw bottom andi-provided -wi-th-.armsi' wlfiiehypr@4 ject forwardlyl from.` its sides and-here? theirfront envol portionsjpiwoted td--thelfr-,ontf endportion v of`the-iront". grain '.bottony Lmea-nsfor supp'ortinguandrosoillatingfthesaidgrain extendihg'unerl the rear straw rook and ilnderthe rear part of 'the front straw rack and" deliveringtthe-materifalwhich falls on it ontothe imperforate front end portion of the fretrgr'iii bottom, and means for delivering an air blast between the twograin bottoms ari'cl'tliriiglthe Chatting screen.

lizvithfront andrear strawraolis, and a cranki jneent; -enclg portionsof thefstraml reeks; of a iiront and rear grain-bottoms? pivoterlly oonneotecll' together 'an-ol -pivotelfly' supported Muiden ther saiclracks;a conne@ting-rodi `er#V i ranged"betweenfthsaid ycrankshaft and the 1front-end portion oi? the rfront grain-bottom, a; chafling;soreennseoured-to; vthe rear end `of nzrekfanddv delivering thefmaterial'- which falls n eetion between theJ reargra-inbottom `and fthe! retrnf bottomi aboye fit,n `and means y:tor

i grain@ bottoms? and'- 1tfh'roughftheehsttling screen- Y1; signatureinth-e 1 @HABILES SEAGBEN.

Witnesses:

ALBERTfANfpERsoN;

delivering an air blast between the* twofi; ff'n'fagrainseparator, thecombination,

fshaft operatively -eonneetedwith the ad- V tlie rear grain bottom, a,Ashok-ing., return Ebott'om extendingzuncler 'the 'rear straw rack andunder the rear part of the-front straw f In testimonyajwhereof- Ihatveaiiiied presence of two witnesses. 'e

